im not caught up with the latest chapters & probably need to reread
but basically they first met during mandatory military service i kinda forgot what exactly happened but mc aka the top "bullied" the ml. i think at one point he defended/protected him and kissed him when drinking not sure if they slept together again my memories are muddy. mc was always attracted to him and ml ? started to have feelings for mc but mc thinks it was a dream.
fast forward present day ml shows up as his new boss/guy he has to work with..
they're both attracted to each other, misunderstandings happen lol and ml is jealous & thinks mc is a whore who sleeps with anyone but goes along with it. whole time mc is clueless and accidentally lead ml to assume he inivited him for xxx. again since ml is salty and jealous he says some hurtful things which made mc upset and go along with it again since they're both extremely attracted to each other and they become fwb. mc pretends to have a lover at work so ppl don't bother him probably bc he's attractive? idk if there's any other reasons he wants to discourage coworkers from flirting or older colleagues from constantly trying to set him up on blind dates.
i forgot why but mc lies to ml about being in a relationship with his celeb friend who had a crush on him before. so btw ml lowkey a shitty person for being ok with being the mc's "side piece". also they entered a bdsm relationship while thinking the other persons an expert bc the ml is an masochist... but the truth is they are each other's firsts.

Can someone pls explain sihyun’s and joohwan’s past and how it’s related to their current dynamic now? And just overall the direction this is going—like their relationship i mean. I never understood the first few chapters